Home / 193,312.98-289,982.43-66,965.94

Finding the Fourth Proportional to 193,312.98, 289,982.43 and 66,965.94

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Solution

The fourth proportional to 193,312.98, 289,982.43 and 66,965.94 is: 100,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,312.98 : 289,982.43 = 66,965.94 : x
  2. Step 2: Convert to fraction form
    193,312.98/289,982.43 = 66,965.94/x
  3. Step 3: Cross multiply
    193,312.98x = 289,982.43 × 66,965.94
  4. Step 4: Simplify right side
    193,312.98x = 19,418,946,008.43
  5. Step 5: Solve for x
    x = 19,418,946,008.43/193,312.98
  6. Step 6: Final answer
    x = 100,453.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.